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https://issues.apache.org/jira/browse/FLINK-40406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18107237#comment-18107237
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Sergey Nuyanzin commented on FLINK-40406:
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I submitted a PR for them
https://github.com/apache/maven-wrapper/pull/445
> CI: Maven build has no retry on transient Central failures, causing spurious
> PR failures
> ----------------------------------------------------------------------------------------
>
> Key: FLINK-40406
> URL: https://issues.apache.org/jira/browse/FLINK-40406
> Project: Flink
> Issue Type: Improvement
> Components: Build System / CI, Kubernetes Operator
> Reporter: Purushottam Sinha
> Priority: Minor
>
> Problem
> CI jobs fail outright on a single transient error from Maven Central (e.g.
> 502 Bad Gateway), with no retry, causing PRs to show a wall of
> failed/cancelled checks for an infrastructure blip unrelated to the change
> under review.
> Evidence
> - Job run: Alternative namespace tests (v1_20, standalone, ...) failed with
> Could not transfer artifact org.codehaus.plexus:plexus-utils:pom:3.4.1
> from/to central (https://repo.maven.apache.org/maven2): transfer failed ...,
> status: 502 Bad Gateway
> - Dockerfile:28 runs mvn -ntp clean install ... with no retry flags; ci.yml's
> three mvn -B clean install / mvn -B verify calls likewise have none
> - ci.yml's concurrency: cancel-in-progress: true amplifies the appearance of
> the failure: a retrigger cancels in-flight matrix jobs, making one real flake
> look like ~10 failures
> - No settings.xml or retry precedent exists in this repo or in apache/flink's
> CI
> Proposed fix
> - Add -Dmaven.wagon.http.retryHandler.count=3 to the mvn invocation in
> Dockerfile:28 and the three mvn calls in ci.yml
> - Optionally add a fallback mirror (e.g.
> maven-central.storage.googleapis.com, verified reachable) as defense-in-depth
> Acceptance
> - A simulated/observed transient Central 502 no longer fails the build on
> first occurrence
> - No new third-party GitHub Actions introduced
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